%0 Electronic Article
%A Hautmann, Francesco
%A Keersmaekers, L.
%A Lelek, A.
%A Barzani, S. Sadeghi
%A Taheri Monfared, S.
%T Collinear and TMD distributions with dynamical soft-gluon resolution scale
%N DESY-25-031
%M PUBDB-2025-00904
%M DESY-25-031
%M arXiv:2502.19380
%D 2025
%Z 33 pages, 15 figures
%X Soft-gluon resolution scales characterize parton branching Monte Carlo implementations of the evolution equations for parton distribution functions in Quantum Chromodynamics (QCD). We examine scenarios with dynamical, i.e., branching-scale dependent, resolution scale, and discuss physical implications for both collinear and transverse-momentum dependent (TMD) distributions. We perform the first determination of parton distributions with dynamical resolution scale, at next-to-leading order (NLO) in perturbation theory, from fits to precision deep-inelastic scattering measurements from HERA. We present an application of TMD distributions with dynamical resolution scale to Drell-Yan lepton-pair transverse momentum spectra at the LHC, and comment on the extraction of non-perturbative intrinsic-kT parameters from Drell-Yan data at small transverse momenta.
%F PUB:(DE-HGF)25
%9 Preprint
%R 10.3204/PUBDB-2025-00904
%U https://bib-pubdb1.desy.de/record/624699